SCHUKO® socket with surge voltage protection — JUNG A 550, _, art. A521UF
A 550 · A521UF
A 550·A521UF

SCHUKO® socket with surge voltage protection

Retail Price

264,655

Made to order from Germany

Characteristics

Article number
A 521 UF
EAN/GTIN
4011377206267
Colour
ivory
Material
duroplastic
Width
55 mm
Height
55 mm
Date of discontinuation
31.03.2026

Description & specifications

SCHUKO® socket with surge voltage protection with screw terminals for rigid and flexible wires up to 2.5 mm2

Intended use

Product characteristics

  • Type 3 fine protection for protecting electrical and electronic devices against transient power surges according to EN 61643-11 protection
  • For use in TN, TT and IT systems
  • Stationary mounting in interiors
  • Installation in flush box with dimensions according to DIN 49073
  • The device protects electrical and electronic devices against transient power surges.
  • Failure of the protection function is indicated by an acoustic and visual signal.

Technical data

Surge voltage protection
type 3 surge arrester
Rated voltage UN
AC 230 V ~
Mains frequency
50/60 Hz
Max. continuous voltage UC
AC 255 V ~
Open-circuit voltage UOC
4 kV
Protection level between L/N
≤ 1.25 kV
Protection level between L/PE
≤ 1.25 kV
Protection level between N/PE
≤ 1.25 kV
Rated load current IL
16 A
Ambient temperature
−5 ... +40 °C Duroplastic (scratch-proof) glossy
Colour
ivory
Material
duroplastic

Technical datasheet

Official JUNG document · PDF · A521UF

Other Colors

1

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93

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Logistics

Single Item

Packaging unit
1 pc.
Weight
0.127 KG
Length
85 MM
Height
73 MM
Width
85 MM

Carton

Packaging unit
1 pc.
Weight
0.127 KG
Length
85 MM
Height
73 MM
Width
85 MM
A 550

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